Railway-car brake-beam fulcrum.



Patented June 12, I900.

No. e5|,74s. I T. 5. CABLISS.

/ RAILWAY GAR BRAKE BEAM FULCBUM.

(Application filed Apr. 2, 1900.)

(No Model.)

WI 1 NE S S E S L/V-VENIOR. 7 2.

' wit-250771.61]

v UNITE STATES PATENT OFFICE.

THOMAS E. CARLISS, DETROIT, MICHIGAN.

RAILWAY-CAR BRAKE-BEAM FULCRUM.

SPECIFICATION formingpart of Letters Patent No. 651,746, dated June 12, 1900.

Application filed April 2,1900. sesame-11.226- N mod m To all whom zit-may concern: 7

Be it known that I, THOMAS E. CARLISS, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Railway- Car Brake- Beam Fulcrums; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and usethe same.

This invention relates to a new and useful improvement in railwaycar brake-beam f ulcrums, more especially of the kind which are used for metallic brake-beams, where the fulcrum grasps and is secured to the brake-beam at the middle.

The object of the present invention is to produce a fulcrum which maybe readily applied to or removed from the brake-beam Without the necessity of removing one of the brake-heads and at the same time shall be as rigid as a one-piece fulcrum, such as is in ordinary use.

To this end the invention consists of a separable fulcrum having interlocking parts, held together solely by being interlocked.

In the annexed drawings, Figure l represents a section takenthrough one of the jaws of the fulcrum looking toward the rear. Fig. 2 represents a front view of the fulcrum looking inwardly between the two jaws. Fig. 3 represents a partial inside view looking down on one of the parts of the fulcrum. Fig. 4 represents a perspective view of a portion of one of the partsof the fulcrum looking from the rear. Fig. 5 represents a side view of the entire fulcrum.

In the drawings is represented the railwaycar brake-beam fulcrum composed of twin parts A A, a description of one of which will answer for both. The part A has a lip a extending rearwardly and provided with the bolt-hole a for engagement with the web of the beam. The part A also has the forwardly-extending jaw a provided with a hole 0. for the reception of the lever-pin by which the brake-lever is attached tothe brake-beam. Between the lip 06 and the jaw a the part A is swelled laterally and provided on the inside with a recess a at the inner end of the jaw a, and forming the front wall of the recess a are a number ofprojections and recesses arranged in two planes transversely of part A of the fulcrum,and the recesses and projections of 'one' part of ,the fulcrum are complementary to the recesses and projections of the other part of the fulcrum, so that the projections on one' are similarly shaped to the projections on the other, the recesses upon one are similarlyshaped to the recesses on the other, and the projections on one part of the fulcrum fit into the recesses on the other part of the fulcrum, and when the various projectionsand recesses of the two parts of the fulcrum are interlocked they form the front wall of the recesses of the fulcrum, and, together with the two rearwardly-extending projections of the fulcrum, form the peculiarly-shaped recess which is adapted to the peculiarly-shaped flange of the beam to which the fulcrum is to be attached. As shown in the drawings, the part A is provided with two projections 19 b and two recesses b and bathe projections and recesses being in the same transverse plane of the diiferent heads. Immediately in front of the recesses and projections just described the part A is provided with the projections O and c' and the recesses c and 0 When the two parts are put together, the projections on one part will engage with the recesses on the other part-that is,the projections 17 of one part will engage the recess b of the other, the projection I) of one part will engage the recess b of the other, the projections c on one part will engage the recess 0 on the other, and the projection c of one part will engage the recess 0 of the other. By this engagement of the projections and recesses there is formed a double interlocking wall between the beamholding recesses of the fulcrum and its jaws. By such interlocking construction of the parts of the fulcrum they are eifectually held from a separation and are also thoroughly braced both lengthwise of and crosswise of the fulcrum.

The jaws of the fulcrum are arranged in the usual oblique position and may be provided with inner and outer lips 61 d to strengthen them. 7

This fulcrum is put in place by having its two parts interlock so as to grasp the brake beam, the flange being held in the recess a,

Too

and the bolt for holding the fulcrum to the" jections, as well as the rear, prevents the two part-sfrom being compressed, the rear interlocking projections and recesses prevents them from being separated, and the en-gage-' ments of the projections by reason of their fitting intotheir properplaces prevents the parts from being separated lengthwise, and' as a component of all of these any twist that may be given on the fulcrum is resisted and prevents separation of the parts in any direction.

Having described my invention, what I claim is- 1. A separable fulcrum having twin interlocking parts held together solely by the engagement of said parts. I v

2. A fulcrum made in twin parts,eachpart provided with projections and recesses, the

two parts being held together solely by the projections and recesses.

3. A separable fulcrum consisting of twin parts, having lips for engaging the web of the beam, a recess for holding the flange of the beam, and interlocking parts outside of such recesses.

4. Combination of the two partsAA, constructed substantially alike, each consisting "ofthe lip a, having the bolt-hole a, the jaw a having the lever pin-hole a3, and the two sets of interlocking projections and recesses. 5. The jaw A provided with the projections b, b c, c, and the recesses 29 ,12 andc and 0 in combination with another jaw provided with complementary projectionsand recesses, the projections on each jaw being adapted to fit the recesses in the other jaw andall arranged as described.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS E. GARLISS.

Witnesses:

HARRY U. FROST, W. H. SINGLETON. 

